Make full use of light and heat to regulate cotton growth

At present, cotton is entering its flowering stage. In Bailian Village, Danggang Town, Xiaonan District, Xiaogan City, Hubei Province, the Linfuqing cotton variety has developed 6 to 7 fruit branches. While some cotton plants are showing a strong growth trend, others are still not producing buds. There is a noticeable time difference of about 25 to 30 days between early and late cotton development. Why is there such a significant gap in the cotton growth cycle? In terms of early development, one major factor is that the early cotton is mostly planted on spring-flowered land without any other crops. Additionally, these seedlings were planted earlier, with better management and transplanting practices. The use of plastic mulch also plays a role, along with timely fertilization and better drainage conditions. On the other hand, the reasons for late cotton development include planting after wheat or rapeseed harvests, which delays the transplanting period and extends the seedling stage. Some fields lack proper fertilization, leading to weak seedlings and root damage. Excessive rainfall can cause waterlogging, especially in low-lying areas where the groundwater level is high, negatively affecting the cotton seedlings. Additionally, improper use of herbicides can kill weeds but also harm the young cotton plants. If early-developed cotton cannot keep up, it may lead to premature aging. Delayed cotton, on the other hand, struggles to balance growth, making it difficult to achieve optimal yields. Both issues are common problems that have been observed over the years. If ignored, they can significantly reduce production. Therefore, current cotton management should focus on two key measures. First, it's important to assess the condition of the seedlings and build confidence in achieving high yields. Currently, more than 10% of the cotton has already started flowering, while about 20% to 30% are still in the bud stage. Most of the cotton is now entering the budding phase. Cotton has strong adaptability and compensatory ability, and there is still plenty of time left for bud formation, flower development, and boll setting. With improved ecological conditions and faster nutrient transformation, it is entirely possible to achieve balanced growth and increased production. Second, managing fertilizer and water scientifically is essential for promoting balanced growth. From June to September, there is ample sunlight and heat available. Efficient use of these resources, along with proper fertilization and irrigation, can enhance photosynthesis and support healthy plant growth. First, it’s necessary to classify the seedlings and apply top-dressing accordingly. For cotton that has already started flowering, apply more than 15 kg of multi-component fertilizer per acre. For those in the bud stage, apply 1,500 kg of decomposed organic manure or 50 kg of bio-organic compound fertilizer per mu, along with 15 kg of potassium fertilizer. Spraying boron outside the roots can help prevent unrealistic flower drop. Fertilize three times to ensure proper blooming. Second, perform deep cultivation, hill-up, soil conservation, root protection, lodging prevention, and ensure good drainage. Third, from late June to early July, which is the peak period for both nutritional and reproductive growth, avoid excessive fertilizer and water application. Instead, use plant growth regulators like ketamine or auxin to control plant shape. Apply 2 to 3 grams of ketamine per acre or 8 to 12 milliliters of auxin, mixed with 30 kg of water for spraying. For late-developing cotton, in addition to applying nitrogen fertilizer, consider using growth accelerators like "802" or Tianfengsu, Baoyu, etc., to speed up their growth. By implementing these strategies, farmers can effectively manage the growth stages of their cotton and improve overall yield and quality.

Screw Spike

Main styles of Screw spike for different market

* North America-High strength screw spikes

1.Description:High strength screw spikes

2. Size: 1x5-1/8", 1x6", 1x7"

3. Specification: high strength, AREMA 2012

4. Finish: Waxed

5.Reference project

NYCT 2.5 million pcs since 2012

* North America-Normal strength AREMA 2012 or ASTM A66

1.Description:Screw spikes

2. Size: 15/16x6"

3. Specification: Normal strength AREMA 2012 or ASTM A66

4. Finish: Plain finished

5. Packing in 50lb plastic keg

6. Reference project

Supplied 3 million pcs since 2010 to North America

* North America-CS screw spike

1.Description:CS screw spike

2. Size: 15/16"x6-1/2"

3. Material to property:

-Tensile strength 120000 PSI

4. Finish: Hot waxed

5. Reference project

Supplied more than 1 million to North America since 2017

* South America

1.Description:Screw spikes

2.Size: 23x105mm/23X110mm

3.Material: 4.6 to UIC864-1

4.Finish: Plain finished

5.Reference project

Supplied 2 million pcs to South America

* South America-No.2 Screw spike

1.Description: No.2 Screw spike

2. Size: 24x145

3. Material to property:

-Grade 4.6 to UIC864-1 or AISI 1020 steel

4. Finish: Plain oiled.

5.Reference project

Supplied about 2 million pcs to South America since 2006

* Rurope

1.Description: BS Screw spikes

2. Size: 1"x6-5/16", 1"X5-1/8",1"X6-1/8", 1"X6-3/8"

3. Material to property:

-Tensile strength 775-925 N/mm2

-Elongation 20%

-Impact strength KCU≥ 65J

4. Finish: Hot dip galvanized, Black

5.Reference project

Supplied more than 1 million to London Underground since 2008

* Ss & DHS for fastening system

1.Description: DHS35 screw spike

2. Size: 24x161

3. Material to property:

-Grade 5.6 to UIC864-1

4. Finish: Hot dip galvanized, or zinc plated according to requirements of customer.

5.Reference project

Supplied about 1 million pcs to Saudi Arabia since 2014 for SKL14 fastening

1.Description: Ss Sleeper screw including Ss8, Ss25,Ss35,Ss36

2. Size: 24x160 (length 150mm is available), 24X161

3. Material to property:

-Grade 4.6, 5.6 and 8.8 to UIC864-1

4. Finish: Plain oiled, hot dip galvanized, zinc plated.

5. Supply reference

Supplied about 2 million to Kazakhstan since 2009 for SKL14 fastening system

Styles of Track Spike

* To North/South American market

This rail spike is manufactured according to ARMEA specifications or customers' requirements.

Size: 3/4", 1/2", 5/8"
Length: 3", 3-1/2", 4-1/2", 5", 5-1/2", 6",etc
Material: Q235, 35#, Q355, etc.
Surface: Plain,etc

* Material to Grade 5.6 or at customers' requirement, mainly supply to Eurpo

Size: 12X12X115mm,etc

Surface: Plain,etc

*To GOST 5812-82

Standard: GOST 5812-82, stand a tensile strength of 49KN(5ton force)

Size:16X16X165/205/230/280mm, etc

Surface: Plain,etc

*Main supply to Sweden

Size:16X16X170mm, etc

Surface: Plain,etc

* Boat spike

Size:3/8X3/8X6"/8"/10", 1/2X1/2X10"/12"

Material: Q235,etc

Surface:Plain, black, Galvanized, etc.

Sleeper Spike,Washer Head Screw Spike,Square Head Screw Spike,Special Head Screw Spike

TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com